<ul class="clearfix" id="header">
    <li @if($nav==1) class="active" @endif><a href="/mobile"><p><span>返回首页</span></p></a></li>
    <li @if($nav==2) class="active" @endif><a href="/mobile/action/about"><p><span>大赛细则</span></p></a></li>
    <li @if($nav==3) class="active" @endif><a href="/mobile/action/hot"><p><span>人气选手</span></p></a></li>
</ul>